Single-Spin Asymmetries in Inclusive and Exclusive Hadronic Processes

Details Single-Spin Asymmetries in Inclusive and Exclusive Hadronic Processes Single-Spin Asymmetries in Inclusive and Exclusive Hadronic Processes

2007-05-16

arxiv.org/abs/0705.2356v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages and 1 figure

Scientific paper

We investigate the single-spin asymmetries in inclusive and exclusive processes of electron-proton scattering and electron-positron annihilation. In the decomposition of hadronic tensor, a Lorentz symmetric spin-dependent term is generally present. The existence of such a term implies single-spin asymmetries in these processes and these single-spin asymmetries for baryons can be understood in a unified manner. We argue that it is important to measure the single-spin asymmetries in both inclusive and exclusive processes for the $\Lambda$ production at the present B-factories. This will lead to the first measurement of the structure function of the symmetric spin-dependent hadronic tensor in these processes.

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